package com.atguigu.tingshu.payment.service.impl;

import com.atguigu.tingshu.account.client.RechargeInfoFeignClient;
import com.atguigu.tingshu.common.constant.SystemConstant;
import com.atguigu.tingshu.common.result.Result;
import com.atguigu.tingshu.model.account.RechargeInfo;
import com.atguigu.tingshu.model.order.OrderInfo;
import com.atguigu.tingshu.order.client.OrderInfoFeignClient;
import com.atguigu.tingshu.payment.config.WxPayV3Config;
import com.atguigu.tingshu.payment.service.PaymentInfoService;
import com.atguigu.tingshu.payment.service.WxPayService;
import com.atguigu.tingshu.payment.util.PayUtil;
import com.atguigu.tingshu.user.client.UserInfoFeignClient;
import com.atguigu.tingshu.vo.user.UserInfoVo;
import com.wechat.pay.java.core.RSAAutoCertificateConfig;
import com.wechat.pay.java.core.exception.ServiceException;
import com.wechat.pay.java.core.notification.NotificationParser;
import com.wechat.pay.java.core.notification.RequestParam;
import com.wechat.pay.java.service.payments.jsapi.JsapiServiceExtension;
import com.wechat.pay.java.service.payments.jsapi.model.*;
import com.wechat.pay.java.service.payments.model.Transaction;
import jakarta.servlet.http.HttpServletRequest;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.Assert;

import java.math.BigDecimal;
import java.util.HashMap;
import java.util.Map;

@Service
@Slf4j
public class WxPayServiceImpl implements WxPayService {

	@Autowired
	private PaymentInfoService paymentInfoService;

	@Autowired
	private OrderInfoFeignClient orderInfoFeignClient;

	@Autowired
	private RechargeInfoFeignClient rechargeInfoFeignClient;

	@Autowired
	private UserInfoFeignClient userInfoFeignClient;

	@Autowired
	private WxPayV3Config wxPayV3Config;

	@Autowired
	private RSAAutoCertificateConfig config;

	@Override
	public Transaction wxNotify(HttpServletRequest request) {
		//  获取请求头数据;
		String wechatPaySerial = request.getHeader("Wechatpay-Serial");
		String wechatpayNonce = request.getHeader("Wechatpay-Nonce");
		String wechatTimestamp = request.getHeader("Wechatpay-Timestamp");
		String wechatSignature = request.getHeader("Wechatpay-Signature");
		//  获取原始报文：
		String requestBody = PayUtil.readData(request);
		// 构造 RequestParam
		RequestParam requestParam = new RequestParam.Builder()
				.serialNumber(wechatPaySerial)
				.nonce(wechatpayNonce)
				.signature(wechatSignature)
				.timestamp(wechatTimestamp)
				.body(requestBody)
				.build();
		//  防止消息重复发送！
		// 初始化 NotificationParser
		NotificationParser parser = new NotificationParser(config);
		try {
			// 以支付通知回调为例，验签、解密并转换成 Transaction
			Transaction transaction = parser.parse(requestParam, Transaction.class);
			//  返回数据
			return transaction;
		} catch (Exception e) {
			// 签名验证失败，返回 401 UNAUTHORIZED 状态码
			log.error(e.getMessage(),e);
			throw new RuntimeException("验签失败");
		}
	}

	@Override
	public Transaction queryPayStatus(String orderNo) {
		QueryOrderByOutTradeNoRequest queryRequest = new QueryOrderByOutTradeNoRequest();
		queryRequest.setMchid(wxPayV3Config.getMerchantId());
		queryRequest.setOutTradeNo(orderNo);

		try {
			//  构建service对象；
			JsapiServiceExtension service = new JsapiServiceExtension.Builder().config(config).build();
			Transaction result = service.queryOrderByOutTradeNo(queryRequest);
			System.out.println(result.getTradeState());
			//  返回数据
			return result;
		} catch (ServiceException e) {
			// API返回失败, 例如ORDER_NOT_EXISTS
			System.out.printf("code=[%s], message=[%s]\n", e.getErrorCode(), e.getErrorMessage());
			System.out.printf("reponse body=[%s]\n", e.getResponseBody());
		}
		//  返回数据
		return null;

	}

	@Override
	public Map<String, Object> createJsapi(String paymentType, String orderNo, Long userId) {
		//	声明一个变量存储支付金额：
		BigDecimal totalAmount = new BigDecimal("0.01");
		//	1.	保存支付交易记录; payment_info
		if (SystemConstant.PAYMENT_TYPE_ORDER.equals(paymentType)) {
			//	订单; -- 订单的金额从订单表中获取 order_info
			//	通过订单编号获取订单信息;
			Result<OrderInfo> orderInfoResult = orderInfoFeignClient.getOrderInfo(orderNo);
			Assert.notNull(orderInfoResult, "订单不存在");
			OrderInfo orderInfo = orderInfoResult.getData();
			Assert.notNull(orderInfo, "订单不存在");
			//	细节判断：
			if (!orderInfo.getOrderStatus().equals(SystemConstant.ORDER_STATUS_UNPAID)) {
				return new HashMap<>();
			}
			//	总金额；
			totalAmount = orderInfo.getOrderAmount();
		} else {
			//	充值; -- 从充值记录表中获取 recharge_info
			Result<RechargeInfo> rechargeInfoResult = rechargeInfoFeignClient.getRechargeInfo(orderNo);
			Assert.notNull(rechargeInfoResult, "充值记录不存在");
			RechargeInfo rechargeInfo = rechargeInfoResult.getData();
			Assert.notNull(rechargeInfo, "充值记录不存在");
			//	细节判断：
			if (!rechargeInfo.getRechargeStatus().equals(SystemConstant.ORDER_STATUS_UNPAID)) {
				return new HashMap<>();
			}
			//	总金额；
			totalAmount = rechargeInfo.getRechargeAmount();
		}
		log.info("支付金额：{}", totalAmount);
		paymentInfoService.savePaymentInfo(paymentType, orderNo, userId, totalAmount);
		//	2.	对应生成支付页面;
		JsapiServiceExtension service = new JsapiServiceExtension.Builder().config(config).build();

		// 跟之前下单示例一样，填充预下单参数
		PrepayRequest request = new PrepayRequest();
		Amount amount = new Amount();
		//  单位是：分
		amount.setTotal(1);
		request.setAmount(amount);
		request.setAppid(wxPayV3Config.getAppid());
		request.setMchid(wxPayV3Config.getMerchantId());
		request.setDescription("测试商品标题");
		request.setNotifyUrl(wxPayV3Config.getNotifyUrl());
		//  在微信内部：订单商户号叫out_trade_no; 在我们平台叫：order_no;
		request.setOutTradeNo(orderNo);
		Payer payer = new Payer();
		//  获取用户的openid;
		Result<UserInfoVo> userInfoVoResult = userInfoFeignClient.getUserInfoVo(userId);
		Assert.notNull(userInfoVoResult, "查询用户信息失败");
		UserInfoVo userInfoVo = userInfoVoResult.getData();
		Assert.notNull(userInfoVo, "查询用户信息失败");
		payer.setOpenid(userInfoVo.getWxOpenId());
		request.setPayer(payer);
		//  设置订单过期时间；
//        request.setTimeExpire(System.currentTimeMillis() + 1000 * 60 * 10);
		// response包含了调起支付所需的所有参数，可直接用于前端调起支付
		PrepayWithRequestPaymentResponse response = service.prepayWithRequestPayment(request);
		//  声明一个map 集合；
		Map<String, Object> result = new HashMap();
		//  赋值：
		result.put("timeStamp", response.getTimeStamp()); // 时间戳
		result.put("nonceStr", response.getNonceStr());   // 随机字符串
		result.put("package", response.getPackageVal());  // 订单详情扩展字符串
		result.put("signType", response.getSignType());   // 签名方式
		result.put("paySign", response.getPaySign());     // 签名
		//  返回数据
		return result;
	}

}
